Method

NumCosmoHIPertAdiabeval_powspec_drho_at

Declaration [src]

gdouble
nc_hipert_adiab_eval_powspec_drho_at (
  NcHIPertAdiab* adiab,
  NcmModel* model,
  const gdouble tau
)

Description [src]

Evaluates the power spectrum of the gauge invariant variable $\delta\rho$ at a given time $\tau$. The power spectrum is given by $$ P_{\delta\rho} = u^2\frac{2\pi^2}{k^3} \frac{J_{22}}{2}. $$.

Parameters

model

Type: NcmModel

A NcmModel.

The data is owned by the caller of the method.
tau

Type: const gdouble

$\tau$.

Return value

Type: gdouble

The power spectrum of the gauge invariant variable $\delta\rho$.